An improved mathematical model to simulate mold filling process in high pressure die casting using CLSVOF methods and CSF model

作者：Bi Cheng; Guo Zhi peng^*; Xiong Shou mei

来源：China Foundry, 2015, 12(3): 180-188.

• mold filling
• HPDC
• CLSVOF
• CSF
• surface tension force

A 3D mathematical model was proposed to simulate the mold filling process in high-pressure die casting (HPDC) to improve accuracy considering the surface tension. Piecewise liner interface calculation (PLIC) and volume of fluid (VOF) methods were used to construct the pattern of the liquid interface. A coupled level-set and VOF method (CLSVOF) was proposed to capture the interface pattern and obtain its normal vector. A continuum surface force (CSF) model was used to consider the surface tension. Two water analogy experiments were carried out using the proposed model. Simulation and experimental results were analyzed and compared; and the effects of surface tension were also discussed. The simulation results agreed well with the experiments and the simulation accuracy was an improvement on interface geometries, liquid flows, and gas entrapments.

• 出版日期2015-5
• 单位清华大学